[1] | 1 | /* |
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| 2 | * cluster.c - Cluster-Manager related operations |
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[19] | 3 | * |
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[1] | 4 | * Author Ghassan Almaless (2008,2009,2010,2011,2012) |
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| 5 | * Mohamed Lamine Karaoui (2015) |
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[657] | 6 | * Alain Greiner (2016,2017,2018,2019,2020) |
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[1] | 7 | * |
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| 8 | * Copyright (c) UPMC Sorbonne Universites |
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| 9 | * |
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| 10 | * This file is part of ALMOS-MKH.. |
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| 11 | * |
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| 12 | * ALMOS-MKH. is free software; you can redistribute it and/or modify it |
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| 13 | * under the terms of the GNU General Public License as published by |
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| 14 | * the Free Software Foundation; version 2.0 of the License. |
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| 15 | * |
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| 16 | * ALMOS-MKH. is distributed in the hope that it will be useful, but |
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| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 19 | * General Public License for more details. |
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| 20 | * |
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| 21 | * You should have received a copy of the GNU General Public License |
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| 22 | * along with ALMOS-MKH.; if not, write to the Free Software Foundation, |
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| 23 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 24 | */ |
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| 25 | |
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[14] | 26 | #include <kernel_config.h> |
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[456] | 27 | #include <hal_kernel_types.h> |
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[1] | 28 | #include <hal_atomic.h> |
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| 29 | #include <hal_special.h> |
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[50] | 30 | #include <hal_ppm.h> |
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[564] | 31 | #include <hal_macros.h> |
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[407] | 32 | #include <remote_fifo.h> |
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[1] | 33 | #include <printk.h> |
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| 34 | #include <errno.h> |
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[564] | 35 | #include <queuelock.h> |
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[1] | 36 | #include <core.h> |
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[443] | 37 | #include <chdev.h> |
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[1] | 38 | #include <scheduler.h> |
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| 39 | #include <list.h> |
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| 40 | #include <cluster.h> |
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| 41 | #include <boot_info.h> |
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| 42 | #include <bits.h> |
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| 43 | #include <ppm.h> |
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| 44 | #include <thread.h> |
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| 45 | #include <kmem.h> |
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| 46 | #include <process.h> |
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| 47 | #include <dqdt.h> |
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| 48 | |
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[408] | 49 | ///////////////////////////////////////////////////////////////////////////////////// |
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[1] | 50 | // Extern global variables |
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[408] | 51 | ///////////////////////////////////////////////////////////////////////////////////// |
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[1] | 52 | |
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[564] | 53 | extern process_t process_zero; // allocated in kernel_init.c |
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| 54 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c |
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[1] | 55 | |
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[564] | 56 | |
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| 57 | |
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| 58 | /////////////////////////////////////////////////// |
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| 59 | void cluster_info_init( struct boot_info_s * info ) |
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[1] | 60 | { |
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[428] | 61 | boot_device_t * dev; // pointer on external peripheral |
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| 62 | uint32_t func; // external peripheral functionnal type |
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[564] | 63 | uint32_t x; |
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| 64 | uint32_t y; |
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| 65 | uint32_t i; |
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[1] | 66 | |
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| 67 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 68 | |
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| 69 | // initialize cluster global parameters |
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[19] | 70 | cluster->paddr_width = info->paddr_width; |
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[1] | 71 | cluster->x_width = info->x_width; |
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| 72 | cluster->y_width = info->y_width; |
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| 73 | cluster->x_size = info->x_size; |
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| 74 | cluster->y_size = info->y_size; |
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| 75 | cluster->io_cxy = info->io_cxy; |
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| 76 | |
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[557] | 77 | // initialize the cluster_info[][] array |
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[637] | 78 | for( x = 0 ; x < CONFIG_MAX_CLUSTERS_X ; x++ ) |
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[564] | 79 | { |
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[637] | 80 | for( y = 0; y < CONFIG_MAX_CLUSTERS_Y ; y++ ) |
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[564] | 81 | { |
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[557] | 82 | cluster->cluster_info[x][y] = info->cluster_info[x][y]; |
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| 83 | } |
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| 84 | } |
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[564] | 85 | |
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[428] | 86 | // initialize external peripherals channels |
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| 87 | for( i = 0 ; i < info->ext_dev_nr ; i++ ) |
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| 88 | { |
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| 89 | dev = &info->ext_dev[i]; |
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| 90 | func = FUNC_FROM_TYPE( dev->type ); |
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| 91 | if( func == DEV_FUNC_TXT ) cluster->nb_txt_channels = dev->channels; |
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| 92 | if( func == DEV_FUNC_NIC ) cluster->nb_nic_channels = dev->channels; |
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| 93 | if( func == DEV_FUNC_IOC ) cluster->nb_ioc_channels = dev->channels; |
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| 94 | if( func == DEV_FUNC_FBF ) cluster->nb_fbf_channels = dev->channels; |
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| 95 | } |
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| 96 | |
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[637] | 97 | // initialize number of local cores |
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[564] | 98 | cluster->cores_nr = info->cores_nr; |
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[1] | 99 | |
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[564] | 100 | } // end cluster_info_init() |
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| 101 | |
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[637] | 102 | ////////////////////////////////////// |
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| 103 | void cluster_info_display( cxy_t cxy ) |
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| 104 | { |
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| 105 | uint32_t x; |
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| 106 | uint32_t y; |
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| 107 | uint32_t ncores; |
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| 108 | |
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| 109 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 110 | |
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| 111 | // get x_size & y_size from target cluster |
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| 112 | uint32_t x_size = hal_remote_l32( XPTR( cxy , &cluster->x_size ) ); |
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| 113 | uint32_t y_size = hal_remote_l32( XPTR( cxy , &cluster->y_size ) ); |
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| 114 | |
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| 115 | // get pointers on TXT0 chdev |
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| 116 | xptr_t txt0_xp = chdev_dir.txt_tx[0]; |
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| 117 | cxy_t txt0_cxy = GET_CXY( txt0_xp ); |
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| 118 | chdev_t * txt0_ptr = GET_PTR( txt0_xp ); |
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| 119 | |
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| 120 | // get extended pointer on remote TXT0 lock |
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| 121 | xptr_t lock_xp = XPTR( txt0_cxy , &txt0_ptr->wait_lock ); |
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| 122 | |
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| 123 | // get TXT0 lock |
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| 124 | remote_busylock_acquire( lock_xp ); |
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| 125 | |
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| 126 | nolock_printk("\n***** cluster_info in cluster %x / x_size %d / y_size %d\n", |
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| 127 | cxy, x_size, y_size ); |
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| 128 | |
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| 129 | for( x = 0 ; x < x_size ; x++ ) |
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| 130 | { |
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| 131 | for( y = 0 ; y < y_size ; y++ ) |
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| 132 | { |
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| 133 | ncores = (uint32_t)hal_remote_lb( XPTR( cxy , &cluster->cluster_info[x][y] ) ); |
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| 134 | nolock_printk(" - ncores[%d][%d] = %d\n", x, y, ncores ); |
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| 135 | } |
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| 136 | } |
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| 137 | |
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| 138 | // release TXT0 lock |
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| 139 | remote_busylock_release( lock_xp ); |
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| 140 | |
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| 141 | } // end cluster_info_display() |
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| 142 | |
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[564] | 143 | ///////////////////////////////////////////////////////// |
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| 144 | error_t cluster_manager_init( struct boot_info_s * info ) |
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| 145 | { |
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| 146 | error_t error; |
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| 147 | lpid_t lpid; // local process_index |
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| 148 | lid_t lid; // local core index |
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| 149 | |
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| 150 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 151 | |
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[438] | 152 | #if DEBUG_CLUSTER_INIT |
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[593] | 153 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 154 | thread_t * this = CURRENT_THREAD; |
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[438] | 155 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[593] | 156 | printk("\n[%s] thread[%x,%x] enters for cluster %x / cycle %d\n", |
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| 157 | __FUNCTION__, this->process->pid, this->trdid, local_cxy , cycle ); |
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[433] | 158 | #endif |
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[50] | 159 | |
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[637] | 160 | #if (DEBUG_CLUSTER_INIT & 1) |
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| 161 | cluster_info_display( local_cxy ); |
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| 162 | #endif |
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| 163 | |
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[1] | 164 | // initialises embedded PPM |
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[50] | 165 | error = hal_ppm_init( info ); |
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[1] | 166 | |
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[50] | 167 | if( error ) |
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| 168 | { |
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| 169 | printk("\n[ERROR] in %s : cannot initialize PPM in cluster %x\n", |
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| 170 | __FUNCTION__ , local_cxy ); |
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| 171 | return ENOMEM; |
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| 172 | } |
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| 173 | |
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[438] | 174 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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[433] | 175 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 176 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[593] | 177 | printk("\n[%s] PPM initialized in cluster %x / cycle %d\n", |
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[433] | 178 | __FUNCTION__ , local_cxy , cycle ); |
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| 179 | #endif |
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[50] | 180 | |
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[1] | 181 | // initialises embedded KHM |
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| 182 | khm_init( &cluster->khm ); |
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[19] | 183 | |
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[438] | 184 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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[457] | 185 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 186 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[593] | 187 | printk("\n[%s] KHM initialized in cluster %x at cycle %d\n", |
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[437] | 188 | __FUNCTION__ , local_cxy , hal_get_cycles() ); |
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| 189 | #endif |
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[50] | 190 | |
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[19] | 191 | // initialises embedded KCM |
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[635] | 192 | uint32_t i; |
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| 193 | for( i = 0 ; i < 6 ; i++ ) kcm_init( &cluster->kcm[i] , i+6 ); |
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[1] | 194 | |
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[438] | 195 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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[457] | 196 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 197 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[635] | 198 | printk("\n[%s] KCM[6:11] initialized in cluster %x at cycle %d\n", |
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[437] | 199 | __FUNCTION__ , local_cxy , hal_get_cycles() ); |
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| 200 | #endif |
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[50] | 201 | |
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[296] | 202 | // initialises all cores descriptors |
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[1] | 203 | for( lid = 0 ; lid < cluster->cores_nr; lid++ ) |
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| 204 | { |
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| 205 | core_init( &cluster->core_tbl[lid], // target core descriptor |
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| 206 | lid, // local core index |
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| 207 | info->core[lid].gid ); // gid from boot_info_t |
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| 208 | } |
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[19] | 209 | |
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[438] | 210 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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[433] | 211 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 212 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[593] | 213 | printk("\n[%s] cores initialized in cluster %x / cycle %d\n", |
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[433] | 214 | __FUNCTION__ , local_cxy , cycle ); |
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| 215 | #endif |
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[50] | 216 | |
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[440] | 217 | // initialises RPC FIFOs |
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| 218 | for( lid = 0 ; lid < cluster->cores_nr; lid++ ) |
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| 219 | { |
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[564] | 220 | remote_fifo_init( &cluster->rpc_fifo[lid] ); |
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[440] | 221 | cluster->rpc_threads[lid] = 0; |
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| 222 | } |
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[1] | 223 | |
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[438] | 224 | #if( DEBUG_CLUSTER_INIT & 1 ) |
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[437] | 225 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 226 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[593] | 227 | printk("\n[%s] RPC fifo inialized in cluster %x at cycle %d\n", |
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[407] | 228 | __FUNCTION__ , local_cxy , hal_get_cycles() ); |
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[437] | 229 | #endif |
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[50] | 230 | |
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[1] | 231 | // initialise pref_tbl[] in process manager |
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[564] | 232 | queuelock_init( &cluster->pmgr.pref_lock , LOCK_CLUSTER_PREFTBL ); |
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[1] | 233 | cluster->pmgr.pref_nr = 0; |
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[19] | 234 | cluster->pmgr.pref_tbl[0] = XPTR( local_cxy , &process_zero ); |
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[580] | 235 | for( lpid = 0 ; lpid < CONFIG_MAX_PROCESS_PER_CLUSTER ; lpid++ ) |
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[1] | 236 | { |
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| 237 | cluster->pmgr.pref_tbl[lpid] = XPTR_NULL; |
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| 238 | } |
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| 239 | |
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| 240 | // initialise local_list in process manager |
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[23] | 241 | xlist_root_init( XPTR( local_cxy , &cluster->pmgr.local_root ) ); |
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[1] | 242 | cluster->pmgr.local_nr = 0; |
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[564] | 243 | remote_queuelock_init( XPTR( local_cxy , &cluster->pmgr.local_lock ) , |
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| 244 | LOCK_CLUSTER_LOCALS ); |
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[1] | 245 | |
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| 246 | // initialise copies_lists in process manager |
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[101] | 247 | for( lpid = 0 ; lpid < CONFIG_MAX_PROCESS_PER_CLUSTER ; lpid++ ) |
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[1] | 248 | { |
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| 249 | cluster->pmgr.copies_nr[lpid] = 0; |
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| 250 | xlist_root_init( XPTR( local_cxy , &cluster->pmgr.copies_root[lpid] ) ); |
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[564] | 251 | remote_queuelock_init( XPTR( local_cxy , &cluster->pmgr.copies_lock[lpid] ), |
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| 252 | LOCK_CLUSTER_COPIES ); |
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[19] | 253 | } |
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[1] | 254 | |
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[438] | 255 | #if DEBUG_CLUSTER_INIT |
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[433] | 256 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 257 | if( DEBUG_CLUSTER_INIT < cycle ) |
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[593] | 258 | printk("\n[%s] thread[%x,%x] exit for cluster %x / cycle %d\n", |
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| 259 | __FUNCTION__, this->process->pid, this->trdid, local_cxy, cycle ); |
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[433] | 260 | #endif |
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[50] | 261 | |
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[124] | 262 | hal_fence(); |
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[1] | 263 | |
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| 264 | return 0; |
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[564] | 265 | } // end cluster_manager_init() |
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[1] | 266 | |
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[564] | 267 | /////////////////////////////////// |
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[561] | 268 | cxy_t cluster_random_select( void ) |
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| 269 | { |
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| 270 | uint32_t index; |
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[564] | 271 | uint32_t x; |
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[561] | 272 | uint32_t y; |
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[564] | 273 | cxy_t cxy; |
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[561] | 274 | |
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[564] | 275 | uint32_t x_size = LOCAL_CLUSTER->x_size; |
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| 276 | uint32_t y_size = LOCAL_CLUSTER->y_size; |
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| 277 | |
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| 278 | do |
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| 279 | { |
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[561] | 280 | index = ( hal_get_cycles() + hal_get_gid() ) % (x_size * y_size); |
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| 281 | x = index / y_size; |
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| 282 | y = index % y_size; |
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[564] | 283 | cxy = HAL_CXY_FROM_XY( x , y ); |
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| 284 | } |
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| 285 | while ( cluster_is_active( cxy ) == false ); |
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[561] | 286 | |
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[564] | 287 | return ( cxy ); |
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[561] | 288 | } |
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| 289 | |
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[637] | 290 | ///////////////////////////////////////////// |
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| 291 | inline bool_t cluster_is_active ( cxy_t cxy ) |
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[1] | 292 | { |
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[564] | 293 | uint32_t x = HAL_X_FROM_CXY( cxy ); |
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| 294 | uint32_t y = HAL_Y_FROM_CXY( cxy ); |
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| 295 | |
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| 296 | return ( LOCAL_CLUSTER->cluster_info[x][y] != 0 ); |
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| 297 | } |
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| 298 | |
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[1] | 299 | //////////////////////////////////////////////////////////////////////////////////// |
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| 300 | // Cores related functions |
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| 301 | //////////////////////////////////////////////////////////////////////////////////// |
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| 302 | |
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[637] | 303 | ///////////////////////////////////////////// |
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| 304 | lid_t cluster_select_local_core( cxy_t cxy ) |
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[1] | 305 | { |
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[637] | 306 | uint32_t min = 1000000; |
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[440] | 307 | lid_t sel = 0; |
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| 308 | uint32_t nthreads; |
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| 309 | lid_t lid; |
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| 310 | scheduler_t * sched; |
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[637] | 311 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 312 | uint32_t ncores = hal_remote_l32( XPTR( cxy , &cluster->cores_nr ) ); |
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[1] | 313 | |
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[637] | 314 | for( lid = 0 ; lid < ncores ; lid++ ) |
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[1] | 315 | { |
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[637] | 316 | sched = &cluster->core_tbl[lid].scheduler; |
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[440] | 317 | |
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[637] | 318 | nthreads = hal_remote_l32( XPTR( cxy , &sched->u_threads_nr ) ) + |
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| 319 | hal_remote_l32( XPTR( cxy , &sched->k_threads_nr ) ); |
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| 320 | |
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[440] | 321 | if( nthreads < min ) |
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[1] | 322 | { |
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[440] | 323 | min = nthreads; |
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[1] | 324 | sel = lid; |
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| 325 | } |
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[19] | 326 | } |
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[1] | 327 | return sel; |
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| 328 | } |
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| 329 | |
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| 330 | //////////////////////////////////////////////////////////////////////////////////// |
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[428] | 331 | // Process related functions |
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[1] | 332 | //////////////////////////////////////////////////////////////////////////////////// |
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| 333 | |
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[433] | 334 | |
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| 335 | ////////////////////////////////////////////////////// |
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[443] | 336 | xptr_t cluster_get_process_from_pid_in_cxy( cxy_t cxy, |
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| 337 | pid_t pid ) |
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| 338 | { |
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| 339 | xptr_t root_xp; // xptr on root of list of processes in owner cluster |
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| 340 | xptr_t lock_xp; // xptr on lock protecting this list |
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| 341 | xptr_t iter_xp; // iterator |
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| 342 | xptr_t current_xp; // xptr on current process descriptor |
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| 343 | bool_t found; |
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| 344 | |
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| 345 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 346 | |
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| 347 | // get owner cluster and lpid |
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| 348 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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| 349 | lpid_t lpid = LPID_FROM_PID( pid ); |
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| 350 | |
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| 351 | // get lock & root of list of copies from owner cluster |
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| 352 | root_xp = XPTR( owner_cxy , &cluster->pmgr.copies_root[lpid] ); |
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| 353 | lock_xp = XPTR( owner_cxy , &cluster->pmgr.copies_lock[lpid] ); |
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| 354 | |
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| 355 | // take the lock protecting the list of processes |
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[564] | 356 | remote_queuelock_acquire( lock_xp ); |
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[443] | 357 | |
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| 358 | // scan list of processes |
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| 359 | found = false; |
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| 360 | XLIST_FOREACH( root_xp , iter_xp ) |
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| 361 | { |
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| 362 | current_xp = XLIST_ELEMENT( iter_xp , process_t , copies_list ); |
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| 363 | |
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| 364 | if( GET_CXY( current_xp ) == cxy ) |
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| 365 | { |
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| 366 | found = true; |
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| 367 | break; |
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| 368 | } |
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| 369 | } |
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| 370 | |
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| 371 | // release the lock protecting the list of processes |
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[564] | 372 | remote_queuelock_release( lock_xp ); |
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[443] | 373 | |
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| 374 | // return extended pointer on process descriptor in owner cluster |
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| 375 | if( found ) return current_xp; |
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| 376 | else return XPTR_NULL; |
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| 377 | |
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| 378 | } // end cluster_get_process_from_pid_in_cxy() |
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| 379 | |
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| 380 | |
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| 381 | ////////////////////////////////////////////////////// |
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[433] | 382 | xptr_t cluster_get_owner_process_from_pid( pid_t pid ) |
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| 383 | { |
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| 384 | xptr_t root_xp; // xptr on root of list of processes in owner cluster |
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[436] | 385 | xptr_t lock_xp; // xptr on lock protecting this list |
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[433] | 386 | xptr_t iter_xp; // iterator |
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| 387 | xptr_t current_xp; // xptr on current process descriptor |
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| 388 | process_t * current_ptr; // local pointer on current process |
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| 389 | pid_t current_pid; // current process identifier |
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| 390 | bool_t found; |
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| 391 | |
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| 392 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 393 | |
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| 394 | // get owner cluster and lpid |
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| 395 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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| 396 | |
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| 397 | // get lock & root of list of process in owner cluster |
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| 398 | root_xp = XPTR( owner_cxy , &cluster->pmgr.local_root ); |
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| 399 | lock_xp = XPTR( owner_cxy , &cluster->pmgr.local_lock ); |
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| 400 | |
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| 401 | // take the lock protecting the list of processes |
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[564] | 402 | remote_queuelock_acquire( lock_xp ); |
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[433] | 403 | |
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| 404 | // scan list of processes in owner cluster |
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| 405 | found = false; |
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| 406 | XLIST_FOREACH( root_xp , iter_xp ) |
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| 407 | { |
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| 408 | current_xp = XLIST_ELEMENT( iter_xp , process_t , local_list ); |
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| 409 | current_ptr = GET_PTR( current_xp ); |
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[564] | 410 | current_pid = hal_remote_l32( XPTR( owner_cxy , ¤t_ptr->pid ) ); |
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[433] | 411 | |
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| 412 | if( current_pid == pid ) |
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| 413 | { |
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| 414 | found = true; |
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| 415 | break; |
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| 416 | } |
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| 417 | } |
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| 418 | |
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| 419 | // release the lock protecting the list of processes |
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[564] | 420 | remote_queuelock_release( lock_xp ); |
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[433] | 421 | |
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| 422 | // return extended pointer on process descriptor in owner cluster |
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| 423 | if( found ) return current_xp; |
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| 424 | else return XPTR_NULL; |
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| 425 | |
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[436] | 426 | } // end cluster_get_owner_process_from_pid() |
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| 427 | |
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[443] | 428 | |
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[1] | 429 | ////////////////////////////////////////////////////////// |
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| 430 | xptr_t cluster_get_reference_process_from_pid( pid_t pid ) |
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[19] | 431 | { |
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[23] | 432 | xptr_t ref_xp; // extended pointer on reference process descriptor |
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[1] | 433 | |
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| 434 | cluster_t * cluster = LOCAL_CLUSTER; |
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| 435 | |
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| 436 | // get owner cluster and lpid |
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| 437 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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| 438 | lpid_t lpid = LPID_FROM_PID( pid ); |
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| 439 | |
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[19] | 440 | // Check valid PID |
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[23] | 441 | if( lpid >= CONFIG_MAX_PROCESS_PER_CLUSTER ) return XPTR_NULL; |
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[1] | 442 | |
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| 443 | if( local_cxy == owner_cxy ) // local cluster is owner cluster |
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[19] | 444 | { |
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[23] | 445 | ref_xp = cluster->pmgr.pref_tbl[lpid]; |
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[1] | 446 | } |
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| 447 | else // use a remote_lwd to access owner cluster |
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| 448 | { |
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[564] | 449 | ref_xp = (xptr_t)hal_remote_l64( XPTR( owner_cxy , &cluster->pmgr.pref_tbl[lpid] ) ); |
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[1] | 450 | } |
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| 451 | |
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[23] | 452 | return ref_xp; |
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[1] | 453 | } |
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| 454 | |
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[416] | 455 | /////////////////////////////////////////////// |
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| 456 | error_t cluster_pid_alloc( process_t * process, |
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| 457 | pid_t * pid ) |
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[1] | 458 | { |
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| 459 | lpid_t lpid; |
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| 460 | bool_t found; |
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| 461 | |
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[440] | 462 | #if DEBUG_CLUSTER_PID_ALLOC |
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[593] | 463 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 464 | thread_t * this = CURRENT_THREAD; |
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[440] | 465 | if( DEBUG_CLUSTER_PID_ALLOC < cycle ) |
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[593] | 466 | printk("\n[%s] thread[%x,%x] enters in cluster %x / cycle %d\n", |
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| 467 | __FUNCTION__ , this->process->pid , this->trdid , local_cxy , cycle ); |
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[440] | 468 | #endif |
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| 469 | |
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[1] | 470 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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| 471 | |
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[564] | 472 | // get the lock protecting pref_tbl |
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| 473 | queuelock_acquire( &pm->pref_lock ); |
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[1] | 474 | |
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| 475 | // search an empty slot |
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| 476 | found = false; |
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| 477 | for( lpid = 0 ; lpid < CONFIG_MAX_PROCESS_PER_CLUSTER ; lpid++ ) |
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| 478 | { |
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| 479 | if( pm->pref_tbl[lpid] == XPTR_NULL ) |
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| 480 | { |
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| 481 | found = true; |
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| 482 | break; |
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| 483 | } |
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| 484 | } |
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| 485 | |
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| 486 | if( found ) |
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| 487 | { |
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| 488 | // register process in pref_tbl[] |
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[416] | 489 | pm->pref_tbl[lpid] = XPTR( local_cxy , process ); |
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[1] | 490 | pm->pref_nr++; |
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| 491 | |
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| 492 | // returns pid |
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| 493 | *pid = PID( local_cxy , lpid ); |
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| 494 | |
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[416] | 495 | // release the processs_manager lock |
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[564] | 496 | queuelock_release( &pm->pref_lock ); |
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[416] | 497 | |
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| 498 | return 0; |
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[1] | 499 | } |
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| 500 | else |
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| 501 | { |
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[564] | 502 | // release the lock |
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| 503 | queuelock_release( &pm->pref_lock ); |
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[416] | 504 | |
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[564] | 505 | return 0xFFFFFFFF; |
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[19] | 506 | } |
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[1] | 507 | |
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[440] | 508 | #if DEBUG_CLUSTER_PID_ALLOC |
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| 509 | cycle = (uint32_t)hal_get_cycles(); |
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| 510 | if( DEBUG_CLUSTER_PID_ALLOC < cycle ) |
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[593] | 511 | printk("\n[%s] thread[%x,%x] exit in cluster %x / cycle %d\n", |
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| 512 | __FUNCTION__ , this->process->pid , this->trdid , local_cxy , cycle ); |
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[440] | 513 | #endif |
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| 514 | |
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[1] | 515 | } // end cluster_pid_alloc() |
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| 516 | |
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| 517 | ///////////////////////////////////// |
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| 518 | void cluster_pid_release( pid_t pid ) |
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| 519 | { |
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[440] | 520 | |
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| 521 | #if DEBUG_CLUSTER_PID_RELEASE |
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[593] | 522 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 523 | thread_t * this = CURRENT_THREAD; |
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| 524 | if( DEBUG_CLUSTER_PID_ALLOC < cycle ) |
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| 525 | printk("\n[%s] thread[%x,%x] enters in cluster %x / pid %x / cycle %d\n", |
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| 526 | __FUNCTION__ , this->process->pid , this->trdid , local_cxy , pid, cycle ); |
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[440] | 527 | #endif |
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| 528 | |
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[1] | 529 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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| 530 | lpid_t lpid = LPID_FROM_PID( pid ); |
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| 531 | |
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[409] | 532 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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| 533 | |
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[440] | 534 | // check lpid |
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[669] | 535 | assert( __FUNCTION__, (lpid < CONFIG_MAX_PROCESS_PER_CLUSTER), |
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[440] | 536 | "illegal LPID = %d" , lpid ); |
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[1] | 537 | |
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[440] | 538 | // check owner cluster |
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[669] | 539 | assert( __FUNCTION__, (owner_cxy == local_cxy) , |
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[440] | 540 | "local_cluster %x != owner_cluster %x" , local_cxy , owner_cxy ); |
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| 541 | |
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[564] | 542 | // get the lock protecting pref_tbl |
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| 543 | queuelock_acquire( &pm->pref_lock ); |
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[1] | 544 | |
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| 545 | // remove process from pref_tbl[] |
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| 546 | pm->pref_tbl[lpid] = XPTR_NULL; |
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| 547 | pm->pref_nr--; |
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| 548 | |
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| 549 | // release the processs_manager lock |
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[564] | 550 | queuelock_release( &pm->pref_lock ); |
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[1] | 551 | |
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[440] | 552 | #if DEBUG_CLUSTER_PID_RELEASE |
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| 553 | cycle = (uint32_t)hal_get_cycles(); |
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[593] | 554 | if( DEBUG_CLUSTER_PID_ALLOC < cycle ) |
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| 555 | printk("\n[%s] thread[%x,%x] exit in cluster %x / cycle %d\n", |
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| 556 | __FUNCTION__ , this->process->pid , this->trdid , local_cxy , cycle ); |
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[440] | 557 | #endif |
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| 558 | |
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[1] | 559 | } // end cluster_pid_release() |
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| 560 | |
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| 561 | /////////////////////////////////////////////////////////// |
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| 562 | process_t * cluster_get_local_process_from_pid( pid_t pid ) |
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| 563 | { |
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[23] | 564 | xptr_t process_xp; |
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| 565 | process_t * process_ptr; |
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| 566 | xptr_t root_xp; |
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| 567 | xptr_t iter_xp; |
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| 568 | bool_t found; |
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[19] | 569 | |
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[23] | 570 | found = false; |
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| 571 | root_xp = XPTR( local_cxy , &LOCAL_CLUSTER->pmgr.local_root ); |
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| 572 | |
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| 573 | XLIST_FOREACH( root_xp , iter_xp ) |
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[1] | 574 | { |
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[23] | 575 | process_xp = XLIST_ELEMENT( iter_xp , process_t , local_list ); |
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| 576 | process_ptr = (process_t *)GET_PTR( process_xp ); |
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| 577 | if( process_ptr->pid == pid ) |
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[1] | 578 | { |
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[23] | 579 | found = true; |
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[1] | 580 | break; |
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| 581 | } |
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| 582 | } |
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| 583 | |
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[23] | 584 | if (found ) return process_ptr; |
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| 585 | else return NULL; |
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| 586 | |
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[1] | 587 | } // end cluster_get_local_process_from_pid() |
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| 588 | |
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| 589 | ////////////////////////////////////////////////////// |
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| 590 | void cluster_process_local_link( process_t * process ) |
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| 591 | { |
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| 592 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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| 593 | |
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[443] | 594 | // get extended pointers on local process list root & lock |
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| 595 | xptr_t root_xp = XPTR( local_cxy , &pm->local_root ); |
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| 596 | xptr_t lock_xp = XPTR( local_cxy , &pm->local_lock ); |
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| 597 | |
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[564] | 598 | // get lock protecting the local list |
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| 599 | remote_queuelock_acquire( lock_xp ); |
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[1] | 600 | |
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[443] | 601 | // register process in local list |
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| 602 | xlist_add_last( root_xp , XPTR( local_cxy , &process->local_list ) ); |
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[1] | 603 | pm->local_nr++; |
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| 604 | |
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[564] | 605 | // release lock protecting the local list |
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| 606 | remote_queuelock_release( lock_xp ); |
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[1] | 607 | } |
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| 608 | |
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| 609 | //////////////////////////////////////////////////////// |
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| 610 | void cluster_process_local_unlink( process_t * process ) |
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| 611 | { |
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| 612 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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| 613 | |
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[443] | 614 | // get extended pointers on local process list lock |
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| 615 | xptr_t lock_xp = XPTR( local_cxy , &pm->local_lock ); |
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| 616 | |
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[564] | 617 | // get lock protecting the local list |
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| 618 | remote_queuelock_acquire( lock_xp ); |
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[1] | 619 | |
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[443] | 620 | // remove process from local list |
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[23] | 621 | xlist_unlink( XPTR( local_cxy , &process->local_list ) ); |
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[1] | 622 | pm->local_nr--; |
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| 623 | |
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[564] | 624 | // release lock protecting the local list |
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| 625 | remote_queuelock_release( lock_xp ); |
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[1] | 626 | } |
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| 627 | |
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| 628 | /////////////////////////////////////////////////////// |
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| 629 | void cluster_process_copies_link( process_t * process ) |
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| 630 | { |
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| 631 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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| 632 | |
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[438] | 633 | #if DEBUG_CLUSTER_PROCESS_COPIES |
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[593] | 634 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 635 | thread_t * this = CURRENT_THREAD; |
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[438] | 636 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
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[593] | 637 | printk("\n[%s] thread[%x,%x] enters for process %x / cycle %d\n", |
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| 638 | __FUNCTION__ , this->process->pid , this->trdid , process->pid , cycle ); |
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[436] | 639 | #endif |
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| 640 | |
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[1] | 641 | // get owner cluster identifier CXY and process LPID |
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| 642 | pid_t pid = process->pid; |
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| 643 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
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| 644 | lpid_t lpid = LPID_FROM_PID( pid ); |
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| 645 | |
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| 646 | // get extended pointer on lock protecting copies_list[lpid] |
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[120] | 647 | xptr_t copies_lock = XPTR( owner_cxy , &pm->copies_lock[lpid] ); |
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[1] | 648 | |
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| 649 | // get extended pointer on the copies_list[lpid] root |
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[120] | 650 | xptr_t copies_root = XPTR( owner_cxy , &pm->copies_root[lpid] ); |
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[1] | 651 | |
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| 652 | // get extended pointer on the local copies_list entry |
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| 653 | xptr_t copies_entry = XPTR( local_cxy , &process->copies_list ); |
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| 654 | |
---|
[19] | 655 | // get lock protecting copies_list[lpid] |
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[564] | 656 | remote_queuelock_acquire( copies_lock ); |
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[1] | 657 | |
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[436] | 658 | // add copy to copies_list |
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[1] | 659 | xlist_add_first( copies_root , copies_entry ); |
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| 660 | hal_remote_atomic_add( XPTR( owner_cxy , &pm->copies_nr[lpid] ) , 1 ); |
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| 661 | |
---|
[19] | 662 | // release lock protecting copies_list[lpid] |
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[564] | 663 | remote_queuelock_release( copies_lock ); |
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[1] | 664 | |
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[438] | 665 | #if DEBUG_CLUSTER_PROCESS_COPIES |
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[436] | 666 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 667 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
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[593] | 668 | printk("\n[%s] thread[%x,%x] exit for process %x / cycle %d\n", |
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| 669 | __FUNCTION__ , this->process->pid , this->trdid , process->pid , cycle ); |
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[436] | 670 | #endif |
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| 671 | |
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| 672 | } // end cluster_process_copies_link() |
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| 673 | |
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[1] | 674 | ///////////////////////////////////////////////////////// |
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| 675 | void cluster_process_copies_unlink( process_t * process ) |
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| 676 | { |
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| 677 | pmgr_t * pm = &LOCAL_CLUSTER->pmgr; |
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| 678 | |
---|
[438] | 679 | #if DEBUG_CLUSTER_PROCESS_COPIES |
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[593] | 680 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 681 | thread_t * this = CURRENT_THREAD; |
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[438] | 682 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
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[593] | 683 | printk("\n[%s] thread[%x,%x] enters for process %x / cycle %d\n", |
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| 684 | __FUNCTION__ , this->process->pid , this->trdid , process->pid , cycle ); |
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[436] | 685 | #endif |
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| 686 | |
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[1] | 687 | // get owner cluster identifier CXY and process LPID |
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| 688 | pid_t pid = process->pid; |
---|
| 689 | cxy_t owner_cxy = CXY_FROM_PID( pid ); |
---|
| 690 | lpid_t lpid = LPID_FROM_PID( pid ); |
---|
| 691 | |
---|
| 692 | // get extended pointer on lock protecting copies_list[lpid] |
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[436] | 693 | xptr_t copies_lock = XPTR( owner_cxy , &pm->copies_lock[lpid] ); |
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[1] | 694 | |
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| 695 | // get extended pointer on the local copies_list entry |
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| 696 | xptr_t copies_entry = XPTR( local_cxy , &process->copies_list ); |
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| 697 | |
---|
[19] | 698 | // get lock protecting copies_list[lpid] |
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[564] | 699 | remote_queuelock_acquire( copies_lock ); |
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[1] | 700 | |
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[436] | 701 | // remove copy from copies_list |
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[1] | 702 | xlist_unlink( copies_entry ); |
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| 703 | hal_remote_atomic_add( XPTR( owner_cxy , &pm->copies_nr[lpid] ) , -1 ); |
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| 704 | |
---|
[19] | 705 | // release lock protecting copies_list[lpid] |
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[564] | 706 | remote_queuelock_release( copies_lock ); |
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[1] | 707 | |
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[438] | 708 | #if DEBUG_CLUSTER_PROCESS_COPIES |
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[436] | 709 | cycle = (uint32_t)hal_get_cycles(); |
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[438] | 710 | if( DEBUG_CLUSTER_PROCESS_COPIES < cycle ) |
---|
[593] | 711 | printk("\n[%s] thread[%x,%x] exit for process %x / cycle %d\n", |
---|
| 712 | __FUNCTION__ , this->process->pid , this->trdid , process->pid , cycle ); |
---|
[436] | 713 | #endif |
---|
| 714 | |
---|
| 715 | } // end cluster_process_copies_unlink() |
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| 716 | |
---|
[583] | 717 | //////////////////////////////////////////// |
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| 718 | void cluster_processes_display( cxy_t cxy, |
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| 719 | bool_t owned ) |
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[1] | 720 | { |
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[428] | 721 | xptr_t root_xp; |
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[443] | 722 | xptr_t lock_xp; |
---|
[428] | 723 | xptr_t iter_xp; |
---|
[443] | 724 | xptr_t process_xp; |
---|
[583] | 725 | process_t * process_ptr; |
---|
| 726 | cxy_t process_cxy; |
---|
| 727 | pid_t pid; |
---|
[443] | 728 | cxy_t txt0_cxy; |
---|
| 729 | chdev_t * txt0_ptr; |
---|
| 730 | xptr_t txt0_xp; |
---|
| 731 | xptr_t txt0_lock_xp; |
---|
[627] | 732 | uint32_t pref_nr; // number of owned processes in cluster cxy |
---|
[1] | 733 | |
---|
[669] | 734 | assert( __FUNCTION__, (cluster_is_active( cxy ) ), "illegal cluster index" ); |
---|
[443] | 735 | |
---|
| 736 | // get extended pointer on root and lock for local process list in cluster |
---|
[428] | 737 | root_xp = XPTR( cxy , &LOCAL_CLUSTER->pmgr.local_root ); |
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[443] | 738 | lock_xp = XPTR( cxy , &LOCAL_CLUSTER->pmgr.local_lock ); |
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[1] | 739 | |
---|
[627] | 740 | // get number of owned processes in cluster cxy |
---|
| 741 | pref_nr = hal_remote_l32( XPTR( cxy , &LOCAL_CLUSTER->pmgr.pref_nr ) ); |
---|
| 742 | |
---|
| 743 | // display nothing if no user process in cluster cxy |
---|
| 744 | if( (owned != false) && (pref_nr < 2) ) return; |
---|
| 745 | |
---|
[443] | 746 | // get pointers on TXT0 chdev |
---|
| 747 | txt0_xp = chdev_dir.txt_tx[0]; |
---|
| 748 | txt0_cxy = GET_CXY( txt0_xp ); |
---|
| 749 | txt0_ptr = GET_PTR( txt0_xp ); |
---|
[1] | 750 | |
---|
[443] | 751 | // get extended pointer on TXT0 lock |
---|
| 752 | txt0_lock_xp = XPTR( txt0_cxy , &txt0_ptr->wait_lock ); |
---|
| 753 | |
---|
| 754 | // get lock on local process list |
---|
[564] | 755 | remote_queuelock_acquire( lock_xp ); |
---|
[443] | 756 | |
---|
[564] | 757 | // get TXT0 lock |
---|
| 758 | remote_busylock_acquire( txt0_lock_xp ); |
---|
[443] | 759 | |
---|
| 760 | nolock_printk("\n***** processes in cluster %x / cycle %d\n", |
---|
| 761 | cxy , (uint32_t)hal_get_cycles() ); |
---|
| 762 | |
---|
| 763 | // loop on all processes in cluster cxy |
---|
[428] | 764 | XLIST_FOREACH( root_xp , iter_xp ) |
---|
| 765 | { |
---|
[583] | 766 | process_xp = XLIST_ELEMENT( iter_xp , process_t , local_list ); |
---|
| 767 | process_ptr = GET_PTR( process_xp ); |
---|
| 768 | process_cxy = GET_CXY( process_xp ); |
---|
| 769 | |
---|
| 770 | // get process PID |
---|
| 771 | pid = hal_remote_l32( XPTR( process_cxy , &process_ptr->pid ) ); |
---|
| 772 | |
---|
| 773 | if( owned ) // display only user & owned processes |
---|
| 774 | { |
---|
| 775 | if( (CXY_FROM_PID( pid ) == cxy) && (LPID_FROM_PID( pid ) != 0) ) |
---|
| 776 | { |
---|
| 777 | process_display( process_xp ); |
---|
| 778 | } |
---|
| 779 | } |
---|
| 780 | else // display all local processes |
---|
| 781 | { |
---|
| 782 | process_display( process_xp ); |
---|
| 783 | } |
---|
[428] | 784 | } |
---|
[443] | 785 | |
---|
[564] | 786 | // release TXT0 lock |
---|
| 787 | remote_busylock_release( txt0_lock_xp ); |
---|
[443] | 788 | |
---|
| 789 | // release lock on local process list |
---|
[564] | 790 | remote_queuelock_release( lock_xp ); |
---|
[443] | 791 | |
---|
[428] | 792 | } // end cluster_processes_display() |
---|
[1] | 793 | |
---|
[19] | 794 | |
---|